comScore achieved record quarterly revenue of $76.9 million; GAAP loss before income taxes of $0.7 million; and GAAP net loss of $0.8 million, or $(0.02) per basic and diluted share.

First quarter 2014 metrics compared to pro forma* results for the first quarter 2013 were as follows:

First quarter revenue of $76.9 million, up 14% from a year ago.

First quarter Adjusted EBITDA of $15.4 million, up 22% from a year ago.

First quarter Adjusted EBITDA margin was 20% of revenue, up from 19% from a year ago.

* comScore divested its Non-Health Copy Testing and Configuration Manager products in March 2013. All amounts, including implied prior year Pro Forma amounts, reflect adjustments to exclude the Non-Health Copy Testing and Configuration Manager products for the purposes of consistent presentation and are based on management's estimates of the revenue and results of operations of such products. See Reconciliation of Revenue and Income before Income Taxes to Non-GAAP Revenue, non-GAAP Income and Adjusted EBITDA set forth in the attachment to this press release.

Serge Matta, comScore's chief executive officer, said, "I am proud of the strong growth we drove in revenue and adjusted EBITDA. Our strategic priorities continue to gain momentum, as demonstrated by our recently announced long-term partnership with Yahoo to provide TV comparable metrics on digital, video and mobile analytics to their global advertiser base. Our product teams are hard at work, with the Google vCE development and integration, and the syndication of our Total Video measurement solution, all expected to be on-time before the end of the year. We remain focused on driving the business forward with sharp execution and a strong value proposition for our clients, partners and shareholders in 2014 and beyond."

First Quarter 2014 Supplemental Financial and Business Information*(dollars in millions)(unaudited)

1Q14

Pro Forma

1Q13*

Change

Subscription Revenue

$

69.1

$

58.4

18.3

%

Project Revenue

$

7.8

$

9.1

(14.3)%

Existing Customer Revenue

$

69.8

$

59.5

17.3

%

New Customer Revenue

$

7.1

$

8.0

(11.3)%

International Revenue

$

22.7

$

20.2

12.4

%

Customer Count

2,416

2,206

9.5

%

* Pro forma revenue and customer count amounts are adjusted to exclude the company's Non-Health Copy Testing and Configuration Manager products for the purposes of consistent presentation. See Reconciliation of Revenue and Income before Income Taxes to Non-GAAP Revenue, non-GAAP Income and Adjusted EBITDA set forth in the attachment to this press release.

Financial Outlook

comScore's expectations for the second quarter of 2014 are outlined in the table below:

GAAP revenue

$77.3 million to $79.7 million

GAAP (loss) income before income taxes

($2.0) million to ($0.3) million

Adjusted EBITDA**

$14.3 million to $16.0 million

Estimated fully-diluted shares

34.9 million

comScore's expectations for full year 2014 are outlined in the table below:

GAAP revenue

$317.2 million to $328.2 million

GAAP (loss) income before income taxes

($2.4) million to $5.2 million

Adjusted EBITDA**

$59.9 million to $68.5 million

Estimated fully-diluted shares

35.0 million

**

Reconciliations of GAAP to non-GAAP measures are set forth in the attachment to this press release.

Due to the high variability and difficulty in predicting certain items that affect GAAP net income, such as tax rates and stock price, comScore is unable to provide a complete reconciliation of adjusted EBITDA to net income (loss) on a forward-looking basis without unreasonable efforts. However, a reconciliation of forward-looking adjusted EBITDA to GAAP Income (loss) before income taxes is set forth in the attachment to this press release.

Given the discussion herein regarding our non-health copy testing and configuration manager products, we are also providing Non-GAAP pro forma revenue and pro forma Adjusted EBITDA reconciliations for the corresponding prior periods that exclude this business in the attachments to this press release.

Conference Call Information

Management will provide commentary on the company's results in a conference call on Tuesday, April 29 at 8:30 a.m. ET.

The conference call and replay can be accessed by telephone and webcast as follows:

comScore, Inc. (NASDAQ: SCOR) is a global leader in digital measurement and analytics, delivering insights on web, mobile and TV consumer behavior that enable clients to maximize the value of their digital investments. For more information, please visit www.comscore.com/companyinfo.

Non-GAAP Financial Measures

comScore reports all financial information required in accordance with generally accepted accounting principles (GAAP). comScore believes, however, that evaluating its ongoing operating results will be enhanced if it also discloses certain non-GAAP information because it is useful to understand comScore's performance, as it excludes non-cash and other charges that many investors believe may obscure comScore's on-going operating results.

The company believes that excluding certain costs from non-GAAP net income, non-GAAP EPS, and adjusted EBITDA provides a meaningful indication to investors of the expected on-going operating performance of the company. Specifically as it relates to acquisitions and restructurings, the exclusion of these costs reflects the expected benefits realized or to be realized upon the integration of acquired entities into comScore, and the realized benefits of the restructurings.

Whenever comScore uses such historical non-GAAP financial measures, it provides a reconciliation of historical non-GAAP financial measures to the most closely applicable GAAP financial measure. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these historical non-GAAP financial measures to their most directly comparable GAAP financial measure included in the financial tables accompanying this release. Although the company provides a reconciliation of historical non-GAAP financial measures, due to the high variability and difficulty in predicting certain items that affect net income, such as tax rates and stock price, comScore is unable to provide a complete reconciliation of adjusted EBITDA to net income on a forward-looking basis without unreasonable efforts. However, a reconciliation of forward-looking adjusted EBITDA to GAAP income (loss) before income taxes is set forth in the attachment to this press release.

These non-GAAP financial measures do not reflect a comprehensive system of accounting, differ from GAAP measures with the same captions and may differ from non-GAAP financial measures with the same or similar captions that are used by other companies. The use of certain non-GAAP financial measures requires management to make estimates and assumptions regarding amounts of assets and liabilities and the amounts of revenue and expense during the reporting periods. comScore bases its estimates on historical experience and assumptions that it believes are reasonable. Actual results could differ from those estimates.

Cautionary Statement

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, comScore's expectations as to adoption of new products and services by customers; expectations regarding continued growth of its customer base; expectations as to the company's strategy, market position, growth in revenue and margin expansion, impact and financial benefits of certain products, expectations as to the benefits of comScore's partnerships, with Google and Yahoo; expectations and forecasts of future financial performance, including related growth rates and components thereof; and assumptions related to growth for the second quarter and full year of 2014 and beyond. These statements involve risks and uncertainties that could cause our actual results to differ materially, including, but not limited to: comScore's ability to generate strong revenue and margin growth in future periods; comScore's ability to sell new or additional products and attract new customers; comScore's ability to sell additional subscription-based products to customers; comScore's dependence on key partnership arrangements, comScore's ability to sell additional products and services to existing customers; and the volatility of quarterly results and expectations.

For a detailed discussion of these and other risk factors, please refer to comScore's Annual Report on Form 10-K for the year ended December 31, 2013 and other filings we make from time to time with the Securities and Exchange Commission (the "SEC"), which are available on the SEC's Web site ( http://www.sec.gov ).

Stockholders of comScore are cautioned not to place undue reliance on our forward-looking statements, which speak only as of the date such statements are made. comScore does not undertake any obligation to publicly update any forward-looking statements to reflect events, circumstances or new information after the date of this press release, or to reflect the occurrence of unanticipated events.

Weighted -average number of shares used in per share calculation - common stock

GAAP EPS (diluted)

33,822,835

34,113,786

Non-GAAP EPS (diluted)

35,064,385

35,880,433

(1) 2013 amounts include adjustments to exclude Non-Health Copy Testing and Configuration Manager products and are based on management's estimates of the revenue and results of operations of such products.

Revenue and Reconciliation of Income (Loss) before Income Taxes to Adjusted EBITDA (Guidance)(dollars in thousands)Forecasted amounts for the three and twelve month periods ending June 30, 2014 and December 31, 2014 are based on the mid-points of the range of guidance provided hereinThe twelve month period ending December 31, 2013 has been adjusted to exclude the results of operations from the Non-Health Copy-Testing and Configuration Manager products activity which was disposed of during the first quarter of 2013.

Three Months Ended June 30,

Full Year December 31,

2014

2013 (1)

2014

2013 (1)

(unaudited)

(unaudited)

Revenue

$

78,500

$

69,911

$

322,700

$

285,530

Income (loss) before income taxes

(1,100)

918

$

1,400

2,183

Amortization of intangible assets

1,900

1,936

7,700

7,697

Stock-based compensation

8,500

7,146

31,200

27,035

Costs related to acquisitions, restructuring and other non-recurring items

1,600

926

5,100

7,015

Settlement of litigation

(600)

—

(800)

(1,360)

Gain on ARS disposition

—

(1,160)

—

(214)

Depreciation

4,500

4,045

18,300

16,777

Interest expense, net

300

168

1,300

938

Adjusted EBITDA

$

15,100

$

13,979

$

64,200

$

60,071

Adjusted EBITDA margin (%)

19

%

20

%

20

%

21

%

Estimated Q2 2014 and full year 2014 non-GAAP (Diluted) share count is 34.9M and 35.0M, respectively.

(1) Amounts include adjustments to exclude the Non-Health Copy Testing and Configuration Manager products and are based on management's estimates of the revenue and results of operations of such products.

(1) 2013 annual pro forma revenue and pro forma Adjusted EBITDA are adjusted to exclude the company's Non-Health Copy Testing and Configuration Manager products.(2) See reconciliation of Adjusted EBITDA.(3) Adjustments to exclude the Non-Health Copy Testing and Configuration Manager products are based on management's estimates of the revenue and results of operations of such products during 2013.